>1) what is these P1: prefix in the name-value pairsuch as ><p1:gfs_id>string</p1:gfs_id>?

Your XML Schema defines a target namespace, which means that all elements (not only the global ones, as you also defineselementFormDefault="qualified") need to be defined in a specific namespace. The XML Schema to XML wizard chooses to generate an explicit prefix for each namespace that should be used rather than overriding the default namespace; so, what you are seeing is equivalent to <gfs_id xmlns="http://gfs.swissre.com/edms/search_populated">string</gfs_id>

>2)what is the <!--Attribute send_date is optional--> come from? this
>field is not part of XSD at all?

As you may notice, that's an XML comment; it's output to help you understand the generated XML; you can control the generation of XML comments in Tools > Options > XML Schema Editor > XML Schema to XML

>3) It seems that XML didn't include the following simple type of
>XSD as the following...

I've asked engineering to take a look; I'll let you know if this is a limitation of the current wizard implementation.

>4) whers is <xsd:all> of XSD in XML?

It's implicit effect is to create the collection of the various elements as children of gfs_edms. What different behavior would you expect?

>>3) It seems that XML didn't include the following simple type of
>>XSD as the following...
>
>I've asked engineering to take a look; I'll let you know if this is a >limitation of the current wizard implementation.

Turns out this was a limitation in Stylus Studio 2006 (rel 1); Stylus Studio 2006 Release 2 fixes that problem. Release 2 will be available next week.

Dear Minollo,<br>
<br>
Thank for your reply and it is very helpful. I have another question that you might help me:<br>
<br>
I have 1 XML (e.g. Casualty Certificate-v2_update.xml) that need to generate XML Schema. I use stylus studio version 46 to generate attached Casualty Certificate-v2_update_SS_46.xsd; I use stylus studio 2006 to generate attached Casualty Certificate-v2_update2006.xsd. I find that there are sigificant difference between these 2 XSDs such as the following:<br>
<br>
stylus studio version 46 output<br>
<xsd:element name='doc_type' type='xsd:string'><br>
</xsd:element><br>
<br>
stylus studio 2006 output <br>
<xs:element ref="doc_type"/><br>
<xs:element name="doc_type" type="xs:NCName"/><br>
<br>
My questions are:<br>
<br>
1) what is the difference between prefix xsd and prefix xs? <br>
2) if we convert both Schema XSDs to XML file, do we get the same XML output? if not, which XSD is better to use? <br>
<br>
Thank for your advice.<br>
<br>
Regards,<br>
Chih Chung <br>
<br>
<br>